This paper discusses the proposition of the rise of social Islam in Morocco by studying the country's two largest political Islam movements, the Justice and Charity Association (jamāʿat al-ʿadl wa-l-iḥsān) and the Unity and Reform Movement (ḥarakat al tawḥīd wa l-iṣlāḥ). It focuses on the concept of social Islam which implies the provision of financial and in-kind assistance and healthcare, education, athletic, artistic, and pedagogical services to a variety of social strata. The study proceeds from the rise of social Islam, how it relates to the concept of the urban poor under the development "crisis" Morocco has faced since the 1980s, and highlighting the social implications for the most important social stratum: the lower middle class and the poor. The study shows that the Islamist movements under study have managed to form new and old bonds of solidarity on a religious or tribalist basis, which have replaced traditional forms of solidarity that previously used to embrace the lower and lower middle classes.